MAPOL 50- Pack Orange 3-Star Premium Ping Pong Balls Advanced Training Table Tennis Ball Good bounce,More Power,Decent Spin Great for stadium,club and school,home Premium training balls for all -lever players.100% MONEY BACK GUARANTEE For 30 Days Ball Weight (g): 2.7-2.85, Ball Diameter (mm): 40.1- 40.25 MAPOL is a Registered Trademark of Great Store